Surface Flow Visualization of a Side-Mounted NACA 0012 Airfoil in a Transonic Ludwieg Tube

  • F. K. Lu
  • E. M. Braun
  • T. S. Balcazar
Conference paper


Transonic testing is confronted with numerous challenges such as the need to match fullscale Mach and Reynolds numbers, as well as to ensure interference-free flow. Various methods such as porous [1] or adaptive walls [2, 3] are used for the latter. More modern methods involve a combination of “corrections” using numerical simulations [4]. While cryogenic tunnels are used for industrial purposes [5, 6], small Ludwieg tube tunnels have an important role in wind tunnel testing [7].


Wind Tunnel Test Section Plenum Chamber Charge Tube Ludwieg Tube 
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Copyright information

© Springer-Verlag Berlin Heidelberg 2012

Authors and Affiliations

  • F. K. Lu
    • 1
  • E. M. Braun
    • 1
  • T. S. Balcazar
    • 1
  1. 1.Aerodynamics Research Center, Mechanical and Aerospace Engineering DepartmentUniversity of Texas at ArlingtonArlingtonUSA

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